In short, all logging is now available in the Event Viewer, and this can be accessed from the Team Foundation Server Administration Console in the Build Configuration section. As described in the referenced MSDN page, increasing levels of detail can be found in the recent events, operational log, and analytic log (which must first be enabled). Please take a look and let us know if you have any further problems.

Our apologies for the confusion regarding this change. Obviously the leftover comments in the TFSBuildServiceHost.exe.config file regarding trace logging were misleading, and we’ll have those removed in a future release.